Fix #2390: Add databricks-sdk dependency to tools extra

Co-Authored-By: Joe Moura <joao@crewai.com>

tests/tools/test_databricks_import.py

@@ -0,0 +1,13 @@
+import pytest
+
+def test_databricks_sdk_import():
+    """Test that databricks-sdk can be imported without errors.
+    
+    This test verifies that the databricks-sdk dependency is properly installed
+    when using the tools extra, which is required by the databricks_query_tool.
+    """
+    try:
+        import databricks.sdk
+        assert True
+    except ImportError as e:
+        pytest.fail(f"Failed to import databricks.sdk: {e}")